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Meaning of Siderian | Babel Free

Adjective CEFR B2
saɪˈdɪəri.ən

Definitions

Of a geologic period within the Paleoproterozoic era from about 2500 to 2300 million years ago.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

sideritic sideroblastic siderocapsaceous siderographic siderolithic sideropenic

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